30 000 ans après les hommes préhistoriques qui gravaient les parois de schiste le long de la rivière Côa, au nord du Portugal, l’homme moderne réinvestit le paysage sauvage de la région pour y construire un Musée ultra contemporain en hommage à l'art de ses ancêtres. Face à cette intrusion, les habitants de la Vallée du Côa méditent sur le temps qui passe, sur le sens de l'existence…

In the Côa River Valley, in northern Portugal, were rediscovered thousands of prehistoric engravings in open air after centuries of oblivion. They are the most ancient works of art known to Humanity. 30,000 years after the prehistoric men engraved the art works on the shale rocks along the Côa River, modern men return to this savage landscape in order to build an ultra contemporary Museum consecrated to these prehistoric artists. Faced by all these changes, the people living in Côa Valley become more aware of the past, present and future, of the evolution of human beings on Earth.